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119 lines
3.8 KiB
C++
119 lines
3.8 KiB
C++
/* -*- mode: C++; c-basic-offset: 4; indent-tabs-mode: nil -*- */
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// vim: ft=cpp:expandtab:ts=8:sw=4:softtabstop=4:
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#ident "$Id$"
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/*======
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This file is part of PerconaFT.
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Copyright (c) 2006, 2015, Percona and/or its affiliates. All rights reserved.
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PerconaFT is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License, version 2,
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as published by the Free Software Foundation.
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PerconaFT is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with PerconaFT. If not, see <http://www.gnu.org/licenses/>.
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----------------------------------------
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PerconaFT is free software: you can redistribute it and/or modify
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it under the terms of the GNU Affero General Public License, version 3,
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as published by the Free Software Foundation.
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PerconaFT is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Affero General Public License for more details.
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You should have received a copy of the GNU Affero General Public License
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along with PerconaFT. If not, see <http://www.gnu.org/licenses/>.
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======= */
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#ident "Copyright (c) 2006, 2015, Percona and/or its affiliates. All rights reserved."
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#include "portability/toku_portability.h"
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#include "ft/msg.h"
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#include "ft/txn/xids.h"
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#include "util/dbt.h"
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ft_msg::ft_msg(const DBT *key, const DBT *val, enum ft_msg_type t, MSN m, XIDS x) :
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_key(key ? *key : toku_empty_dbt()),
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_val(val ? *val : toku_empty_dbt()),
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_type(t), _msn(m), _xids(x) {
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}
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ft_msg ft_msg::deserialize_from_rbuf(struct rbuf *rb, XIDS *x, bool *is_fresh) {
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const void *keyp, *valp;
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uint32_t keylen, vallen;
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enum ft_msg_type t = (enum ft_msg_type) rbuf_char(rb);
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*is_fresh = rbuf_char(rb);
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MSN m = rbuf_MSN(rb);
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toku_xids_create_from_buffer(rb, x);
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rbuf_bytes(rb, &keyp, &keylen);
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rbuf_bytes(rb, &valp, &vallen);
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DBT k, v;
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return ft_msg(toku_fill_dbt(&k, keyp, keylen), toku_fill_dbt(&v, valp, vallen), t, m, *x);
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}
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ft_msg ft_msg::deserialize_from_rbuf_v13(struct rbuf *rb, MSN m, XIDS *x) {
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const void *keyp, *valp;
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uint32_t keylen, vallen;
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enum ft_msg_type t = (enum ft_msg_type) rbuf_char(rb);
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toku_xids_create_from_buffer(rb, x);
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rbuf_bytes(rb, &keyp, &keylen);
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rbuf_bytes(rb, &valp, &vallen);
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DBT k, v;
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return ft_msg(toku_fill_dbt(&k, keyp, keylen), toku_fill_dbt(&v, valp, vallen), t, m, *x);
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}
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const DBT *ft_msg::kdbt() const {
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return &_key;
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}
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const DBT *ft_msg::vdbt() const {
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return &_val;
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}
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enum ft_msg_type ft_msg::type() const {
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return _type;
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}
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MSN ft_msg::msn() const {
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return _msn;
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}
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XIDS ft_msg::xids() const {
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return _xids;
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}
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size_t ft_msg::total_size() const {
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// Must store two 4-byte lengths
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static const size_t key_val_overhead = 8;
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// 1 byte type, 1 byte freshness, then 8 byte MSN
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static const size_t msg_overhead = 2 + sizeof(MSN);
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static const size_t total_overhead = key_val_overhead + msg_overhead;
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const size_t keyval_size = _key.size + _val.size;
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const size_t xids_size = toku_xids_get_serialize_size(xids());
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return total_overhead + keyval_size + xids_size;
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}
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void ft_msg::serialize_to_wbuf(struct wbuf *wb, bool is_fresh) const {
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wbuf_nocrc_char(wb, (unsigned char) _type);
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wbuf_nocrc_char(wb, (unsigned char) is_fresh);
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wbuf_MSN(wb, _msn);
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wbuf_nocrc_xids(wb, _xids);
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wbuf_nocrc_bytes(wb, _key.data, _key.size);
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wbuf_nocrc_bytes(wb, _val.data, _val.size);
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}
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